java变量的加载顺序

学习编程思想

 1 package com.test.java.classs;
 2
 3 /**
 4  * Created by Administrator on 2015/12/7.
 5  * 在类的内部，变量定义的顺序决定了初始化的顺序。
 6  * 变量会在任何方法（包含构造器）被调用之前得到初始化
 7  */
 8 public class Variable {
 9     public static void main(String[] args) {
10         House house = new House();
11         house.f();
12     }
13
14 }
15
16 class Window{
17     public Window(int n) {
18         System.out.println("window-"+n);
19     }
20 }
21
22 class House{
23     //1
24     Window w1 = new Window(1);
25
26     public House() {
27         //4
28         System.out.println("house()");
29         //5
30         w4 = new Window(44);
31         //6
32         Window w2 = new Window(2);
33     }
34     //2
35     Window w3 = new Window(3);
36     void f(){
37         System.out.println("f()");
38     }
39     //3
40     Window w4 = new Window(4);
41
42 }

结果：

window-1
window-3
window-4
house()
window-44
window-2
f()